Python progressive progressbar working example

progressive_progressbar.py

__author__ = 'krishnab'




from time import sleep
from blessings import Terminal
from progressive.bar import Bar
from progressive.tree import ProgressTree, Value, BarDescriptor


def progbar(_outer, _inner):

    leaf_values = [Value(0) for i in range(2)]

    test_d = {
        'Link pages scraped':  BarDescriptor(value=leaf_values[0],
                                            type=Bar, kwargs=dict(max_value = _outer,width="50%")),
        'Articles collected': BarDescriptor(value = leaf_values[1],
                                            type=Bar, kwargs=dict(max_value= _inner,width="10%"))
    }

    def incr_value(obj, _counter_outer, _counter_inner):
        if _counter_inner < _outer:
            leaf_values[0].value += 1
        if _counter_outer < _inner:
            leaf_values[1].value += 1


    def are_we_done(obj):
        if _counter_inner == _outer and _counter_outer == _inner:
            return(True)
        else:
            return(False)


    # Create blessings.Terminal instance
    t = Terminal()
    # Initialize a ProgressTree instance
    n = ProgressTree(term=t)
    # We'll use the make_room method to make sure the terminal
    #   is filled out with all the room we need
    n.make_room(test_d)

    _counter_inner = 0
    _counter_outer = 0
    while not are_we_done(test_d):
        sleep(2)
        n.cursor.restore()
        # We use our incr_value method to bump the fake numbers
        incr_value(test_d,_counter_outer, _counter_inner)
        # Actually draw out the bars
        n.draw(test_d)
        _counter_inner += 1
        _counter_outer += 1


if __name__ == '__main__':

    progbar(100, 20)